These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Alternate Character Interpretation: The aliens, as possibly a peaceful expedition. They repeatedly avoid harming non-threatening humans and only fire when fired upon, which raises the possibility that they were not invaders or scouting for an attack but peaceful, and twitchy humans botched first contact.
According to the novelization, this is explicitly incorrect, and the alien force was here to determine how much strength will be needed to overwhelm Earth's resistance. How they'll respond with no word back is up in the air.
